Turbo oil leak!

[JoeFireGuy]

My first post........

Hopefully, I dont sound like a complete idiot. I'm new to the turbo thing and have had a leak from either a vac line or a return line. I thought it was coming from the line that returned to the sump from the oil bath for the turbo? The dealer found a vac line that was loose and said it was cauing the system to 'pull air and oil' and thus produce the leak.
Everything I know about turbos, I learned playing Forza.
Any insight would be appreciated.

Much thanks

Joe

 

[mkmcgreg]

You have a turbo charged H3??

 

[JoeFireGuy]

Yeah!, I guess I should post a couple pics from unda the hood.

AEM, cold air intake mated to an AEM turbo. Does awesome on the highway, getting 18 to 19 mpg combined. So far, me likey!

 

[JoeFireGuy]

I know better than to call it an H3-T though.

HAHAHAHAHAHA

 

[atvspeed4]

pics please!

 

[JoeFireGuy]

I'm on duty at the firehouse the next two days. If I can get my act together I'll post a couple. No promises, so don't get anxious......

Joe

 

[SedonaBound]

Which dealer; GM shop or the aftermarket turbo installer? I'd have it checked by someone with solid expertise in turbo gas engines. Proper oil flow and volume thru the turbo bearings is vital. Its the coolant for the turbo bearings too. If oil flow reduced, it can lead to a fried turbo with little warning.

 

[spillKill]

wow a turbo H3 thats pretty awesome and it looks like it helps with MPG
do you mind saying how much u put toward the set up?

 

[Sennin]

+1.

 

[4speedfunk]

How to make a marginally reliable motor into a completely unreliable motor?

Turbo-charge it!

:giggle:

 

[ArtHummer]

Don't get it...:huh:
Consumption of fuel is regulated by computer for optimal performance. Proper mixture of gas and air gives you the right amount for good bang to create the pressure to push the piston down. But naturally aspirated engine have a pressure of 0 or even a bit on the negative side when piston is in the low position. What turbo does is forcing the air in to the piston when it is low and air valve is open. That creates a positive amount of boost pressure, multiplying it when the piston at it's high position and the mixture ignites, resulting in more pressure to push the piston down (pressure = piston is going down with more force = more torque and pressure = piston is completing the sickle faster = more hp) But forcing just air is not enough, more air mean you need MORE FUEL for the correct mixture, that's why in most cases when you instal turbo you have to get bigger fuel injector and tune the ECU so it will accommodate for the positive air pressure and dump more fuel.
In all turbo application that I've seen the fuel consumption drops lower. HOW DOES TURBO INCREASES THE MPG???

Please correct me, if I'm wrong...

 

[LagunaH1]

leak from either a vac line or a return line.

Welcome to the forum.

As to your question: Well, which is it? Vac line or return line? Do you know who installed the turbo? I'd start by having them look at the issue.

 

[erdlen65]

Art a turbo engine will do better on the highway if your not hammering on the throttle constantly the boost pressure will help accelerate without making the motor work as hard.

 

[backcountryislife]

HOW DOES TURBO INCREASES THE MPG???

Please correct me, if I'm wrong...

Boost increases efficiency. While you're not at all off base in the reality of tuning (added air requires added fuel) the efficiency with which the motor operates is increased, and the increased HP is essentially greater than the increased fuel required, so depending on driving conditions, it can make for notably better fuel efficiency.

Add to that the fact that he lives here, where the H3 motor is PAINFULLY underpowered (almost as much as the joke under the hood of my heep ) being able to climb without being at the top of the powerband will make it do notably better.


Btw, fireguy, I'm not an expert in T-h3's (I highly doubt many people are:huh, but I know boost relatively well & MAY be able to lend a hand. I live up in Clear Creek, and depending on where you are down near the Chity I would be up to lend a hand in the job.

With boost, in the end it all comes down to chasing leaks, and depending on the setup, if we can pressurize the system while off it can be very easy to find them... just depends on the setup.

Sometimes though just having someone with an ear under the hood can do the job pretty easily as well.


Btw, welcome to the forum!

Kaleb

 

[Steve #1]

My first post........

Any insight would be appreciated.

Much thanks

Joe

How about a little more information like where is the oil coming from or ending up. Did what the dealer did fix the problem?
WAG would be that a pcv line or something of the sort blew off and then you we getting oil blown out of the line. If this is the problem you may want to look in to having a catch can installed.

Don't get it...:huh:
HOW DOES TURBO INCREASES THE MPG???

Please correct me, if I'm wrong...

You're wrong. Forced induction motors are more efficient than NA motors, especially turbos. At highway speeds the turbo uses very little energy to produce very slight boost so the engine isn't having to suck in air and has a more efficient air fuel ratio.

 

[JoeFireGuy]

I can see that you guys are running off line here a bit. I was only wondering if anyone could offer any advice on how to troubleshoot the leak. I spoke with AEM this morning. They recco'd three shops in Denver for me to take the H3 to and have them look it over. I spoke with the guys at 4 Wheel Parts cause they were tops on AEM's list. Tomorrow morning I'm gonna stop in and pop the hood for the guys to give her a looksy. I'll keep you posted after that. Brad,4 Wheel Parts, did inform me that there's packing that need to be replaced every 40k miles or so. Hopefully, that's the answer.

Let me share this with you guys as well. The turbo doesnt kick in until 2800 rpm-ish. Driving from Denver to Summit County once a week, it only kicks in on the big hills. I barely hear it in normal city driving round town. I have been doing my math the last couple times I feuled up and it appears that I'm getting betwen 18 and 19 mpg combined. Food for thought?

Thanks for all your input, I have learned....

Joe

 

[backcountryislife]

Really odd for it to kick in that high, it's always been like that? I'd think you'd start feeling it around 1500 or so.

It'd sure be nice to have boost on that truck though, I work S of Breck & used to take my H3 from Dumont to Breck here & there... ugh, it was painful!

 

[JoeFireGuy]

UPDATE!

The guys at 4Wheel Parts believe they found the issue....they ran it for just a few minutes and realized that if you removed the oil cap or the dip stick, the idle changed! SO, this means that the oil is finding its way past the piston rings and blowing ALL over the place! The issue is not with the turbo or its components at all. I called the dealer and told them the issue, I have to call back tomorow and talk to the Service Manager to "figure out a plan." I already have a "plan," you sold me a rig with blown piston rings, you fix.

Any follow up thoughts are appreciated...

Joe

 

[atvspeed4]

UPDATE!

The guys at 4Wheel Parts believe they found the issue....they ran it for just a few minutes and realized that if you removed the oil cap or the dip stick, the idle changed! SO, this means that the oil is finding its way past the piston rings and blowing ALL over the place! The issue is not with the turbo or its components at all. I called the dealer and told them the issue, I have to call back tomorow and talk to the Service Manager to "figure out a plan." I already have a "plan," you sold me a rig with blown piston rings, you fix.

Any follow up thoughts are appreciated...

Joe

Well that just addressed my fear that I have had for the past three years about putting a turbo on the 3.5L... I was always curious if the motor could handle the small amount of boost. I started collecting the parts to install one but never did it. I do find it interesting that the rings let go before the crank or the head gasket.

 

[backcountryislife]

You bought it from a dealer boosted?

Which dealer? Have you bought from them before? Hopefully you'll have good luck, but the odds that they'll do much for you is low, but if you just got it, maybe I'm wrong.

I've been surprised by dealers before, GO just put a new clutch in my JK a few weeks ago because I had a throwout bearing noise... that is well known to go a LONG time just making noise & not failing. Sometimes it's better to be lucky than good!

Good luck man!

 

[ArtHummer]

Turbo is not provided by factory and turbos are know for blowing up the motors. I don't think that they will take on repairs. Best thing would be to return it. But it is better to try anyway... Good luck with dealer talks.

 

[JoeFireGuy]

Maybe I'll just pull the turbo altogether. Keep the cold air intake and call it good?

Daaahhh!

Joe

 

[backcountryislife]

Maybe I'll just pull the turbo altogether. Keep the cold air intake and call it good?

Daaahhh!

Joe

Hold on... the problem is in the motor, right? Pulling the turbo won't fix the issue. If anything I'd think that cylinder pressure would minimize leakage, or am I full of poo on that theory???:sly:

Sent from my A200 using Tapatalk 2

 

[Scarsman]

Well, if the rings are leaking then when a cylinder is being filled, the pressure will leak past the rings and thus pressurizing the crankcase, which would in turn cause oil to be blow into the non-pressurized cylinders.

Sent from my C771 using Tapatalk

 

[backcountryislife]

Well, if the rings are leaking then when a cylinder is being filled, the pressure will leak past the rings and thus pressurizing the crankcase, which would in turn cause oil to be blow into the non-pressurized cylinders.

Sent from my C771 using Tapatalk

As I was typing it I knew my logic was flawed, but it was time for bed, and more thinking wasn't in the plans!! (my turbos are on 2 strokes, different game there!)

So if you already have a problem, do you think pulling the turbo would fix anything?